Circassian walnut appeared 100 m years ago. The homeland of walnut is Balkans. It was brought to Greece and started to grow there, then in Italy. This is a big branchy tree. The bearing of this tree is nuts which kernels look similar to brains. Ripe nuts are edible products and a highly active medicine. Walnuts are twice as rich in calories as white bread. 100 g of walnuts contain almost 850 calories.